---
title: "Changes to Upload cosign public keys for verifying signatures"
method: POST
path: "/v2/_zot/ext/cosign"
---

# Changes to Upload cosign public keys for verifying signatures

`POST /v2/_zot/ext/cosign`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 37 revisions.

- **2026-04-26** `bf1094101156`: 1 info
- **2023-08-02** `f5f56e05d59d`: 1 info
- **2021-10-21** `81b68c5e4fde`: 1 breaking

## Changes

- **2026-04-26** `bf1094101156`: 1 info
  - added the non-success response with the status `413`
- **2023-08-02** `f5f56e05d59d`: 1 info
  - endpoint added
- **2021-10-21** `81b68c5e4fde`: 1 breaking
  - api path removed without deprecation

---

[Operation](https://skmtc.dev/project-zot/apis/open-container-initiative-distribution-specification/docs/v2/_zot/ext/cosign/post.md) - [API](https://skmtc.dev/project-zot/apis/open-container-initiative-distribution-specification.md) - [Page](https://skmtc.dev/project-zot/apis/open-container-initiative-distribution-specification/changes/v2/_zot/ext/cosign/post)